If the shaft must have one uniform diameter, determine the required minimum diameter of the shaft if the normal yield stress in the composite shaft must not exceed 450 MPa with a factor of safety equal to 1.8

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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If the shaft must have one uniform diameter, determine the required minimum
diameter of the shaft if the normal yield stress in the composite shaft must not
exceed 450 MPa with a factor of safety equal to 1.8.

Figure 1 shows a composite shaft ABCD acted upon horizontal forces. The
moduli of elasticity and the cross-section areas of the segments of the shaft are
also provided.
Eal = 70 GPa
AAB = 58 mm²
Ecu = 126 GPa
Est = 200 GPa
%3D
%3D
ABC = 77 mm2
AcD = 39 mm²
Сopper
20kN
8 kN
Aluminum
Steel
7 kN
A
B
D
20kN
8 kN
450 mm
300 mm
400 mm
Transcribed Image Text:Figure 1 shows a composite shaft ABCD acted upon horizontal forces. The moduli of elasticity and the cross-section areas of the segments of the shaft are also provided. Eal = 70 GPa AAB = 58 mm² Ecu = 126 GPa Est = 200 GPa %3D %3D ABC = 77 mm2 AcD = 39 mm² Сopper 20kN 8 kN Aluminum Steel 7 kN A B D 20kN 8 kN 450 mm 300 mm 400 mm
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